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Reseach Article

Gray-Scale Image Compression Techniques: A Review

by Asawari Kulkarni, Aparna Junnarkar
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 131 - Number 13
Year of Publication: 2015
Authors: Asawari Kulkarni, Aparna Junnarkar
10.5120/ijca2015907519

Asawari Kulkarni, Aparna Junnarkar . Gray-Scale Image Compression Techniques: A Review. International Journal of Computer Applications. 131, 13 ( December 2015), 22-25. DOI=10.5120/ijca2015907519

@article{ 10.5120/ijca2015907519,
author = { Asawari Kulkarni, Aparna Junnarkar },
title = { Gray-Scale Image Compression Techniques: A Review },
journal = { International Journal of Computer Applications },
issue_date = { December 2015 },
volume = { 131 },
number = { 13 },
month = { December },
year = { 2015 },
issn = { 0975-8887 },
pages = { 22-25 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume131/number13/23510-2015907519/ },
doi = { 10.5120/ijca2015907519 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T23:27:15.365691+05:30
%A Asawari Kulkarni
%A Aparna Junnarkar
%T Gray-Scale Image Compression Techniques: A Review
%J International Journal of Computer Applications
%@ 0975-8887
%V 131
%N 13
%P 22-25
%D 2015
%I Foundation of Computer Science (FCS), NY, USA
Abstract

Multimedia data are large in size as compared to the plain-text data. And hence to transmit them over a low-bandwidth communication channel, it needs to be compressed. In this paper, focus is on compressing gray-scale images. Here two types of compression techniques are explained: Lossy and Lossless. Within lossy techniques, there are three techniques: Fractal encoding, Discrete Cosine Transform (DCT), and Discrete Wavelet Transform (DWT). And Following are lossless techniques: Arithmatic Encoding, Run Length Encoding (RLE), and Huffman Encoding. The efficiency of compression process is estimated using Compression Ratio (C.R.) and the quality of reconstructed image which is generated after decompression process is calculated using Peak-Signal-to-Noise Ratio (P.S.N.R.).

References
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Index Terms

Computer Science
Information Sciences

Keywords

Gray-scale image redundancy compression decompression lossy lossless PSNR CR MSE